About me

Hello! πŸ™Œ

My name is Alfriando C Vean, commonly called Alfri. I'm a detail-oriented Data Analyst with practical experience in building machine learning models, optimizing data pipelines, and developing analytical solutions. Skilled in Python (Pandas, Matplotlib, Seaborn, Scikit-learn, etc.), SQL, statistics, and data visualization tools.

I have completed multiple data science projects, including churn prediction, heart disease classification, large-scale taxi trip analysis, etc. I thrive at converting business problems into data-driven solutions and am currently expanding my capabilities toward full Data Science and Machine Learning development.

What I'm doing

  • data icon

    ETL & Data Engineering

    Building data pipelines and preprocessing raw data for analytics and machine learning.

  • Analysis icon

    Data Cleaning & Analysis

    Cleaning, analyzing, and interpreting business data to uncover meaningful insights.

  • Visualization icon

    Data Visualization

    Creating dashboards and analytical visualizations using Python and BI tools.

  • machine learning icon

    Machine Learning

    Developing ML models for classification, prediction, and business optimization.

Testimonials

  • Aldi Vibriani

    Aldi Vibriani

    Alfriando is one of my partner in developing machine learning solutions for our final project in the Data Science Bootcamp. His extensive knowledge and capabilities were instrumental to our success. Alfriando possesses strong skills in data analysis and model development, significantly enhancing the quality of our work. I recommend him for any data science role that requires expertise in machine learning.

  • Andiny Lusy

    Andiny Lusy

    Working with Alfri has been an incredible experience. He has shown unparalleled expertise in the field of machine learning, consistently delivering innovative solutions to complex problems. He has ability to design and implement machine learning models that produced actionable insights. I highly recommend him for any role that demands advanced knowledge of machine learning and a strong problem-solving mindset.

  • Bonifasius Sinurat

    Bonifasius Sinurat

    I had the chance to work closely with Alfriando during our final project in Group Alpha, and his contribution consistently stood out. He brings a strong analytical mindset, solid technical skills, and a reliable work ethic that really helped keep the team on track. He’s very good at breaking complex problems into clear, actionable steps, which made our collaboration much more structured and efficient. It was a positive experience working with him, and I believe he will be a great asset in any data-focused team.

Resume

Education

  1. Purwadhika Digital Technology School Jakarta

    May 2025 - November 2025

    Data Science & Machine Learning Bootcamp (Grade 79.6/100).

  2. Rakamin Academy

    July 2004 - December 2024

    Data Science & Machine Learning Bootcamp (Grade 89.18/100).

  3. Universitas Mercu Buana Yogyakarta

    September 2020 β€” February 2024

    Bachelor's Degree in Informatics/Computer Science (GPA 3.87/4.00). Focus on Data Science & Artificial Intelligence.

Experience

  1. Business Intelligence Analyst Project Based Virtual Intern - Bank Muamalat X Rakamin Academy

    May 2025 β€” June 2025

    Consolidated and transformed multiple transactional data sources into a clean master dataset containing over 3K+ records. Developed interactive dashboards in Looker Studio that visualized key metrics such as revenue growth and customer retention, improving report accessibility by 40%. Delivered actionable insights to support executive decision-making and optimize data accuracy across business units

  2. Data Engineer Project Based Virtual Intern - id/x partners X Rakamin Academy

    December 2024 β€” January 2025

    Led an end-to-end data warehouse implementation project for a banking client at ID/X Partners, focusing on optimizing ETL processes across multiple data sources. Designed and developed a comprehensive data warehouse architecture including dimension tables and fact tables. Created efficient ETL jobs to integrate and transform data from diverse sources including Excel, CSV, and SQL Server databases. Implemented data quality measures to eliminate duplicates and standardize formatting across all data points. Developed parametrized stored procedures for daily transaction analysis and customer balance monitoring, enabling real-time financial reporting and customer account management. This solution significantly improved the client's data integration capabilities and reduced reporting delays while maintaining data integrity across all banking operations.

  3. Data Scientist Project Based Virtual Intern - id/x partners X Rakamin Academy

    November 2024 β€” December 2024

    Analyzed loan and credit data to identify key risk factors contributing to customer defaults, improving risk prediction accuracy. Developed a classification model (Random Forest) achieving Recall: 0.86, enabling the early detection of potential default clients. Presented analytical findings to the client’s data team, leading to actionable changes in credit risk evaluation strategy.

  4. Big Data Analytics Project Based Virtual Intern - Kimia Farma X Rakamin Academy

    October 2024 β€” November 2024

    Queried and analyzed company-wide performance data (2020–2023) using Google BigQuery, identifying sales growth trends and inefficiencies. Constructed data marts and aggregation tables, enhancing query speed and data integrity for internal reporting. Built interactive dashboards in Google Looker Studio, improving business performance visibility and decision-making across 5 key departments.

  5. Administrative and Planning Assistant - Toko Listrik Terang Surya

    July 2024 β€” December 2024

    Supported inventory management and transaction tracking by maintaining accurate records of stock and sales, increasing efficiency by 50%. Coordinated business planning activities, including promotional campaigns and new product strategies, improving monthly sales by 10%. Delivered consistent administrative support to improve daily operations and customer satisfaction.

Curriculum Vitae

  1. Curriculum Vitae

    Updated 2025 πŸ“„ Download My CV

Certificates